Abstract: The present invention relates to a heat exchanger for gases, in particular for the exhaust gases of an engine, which includes a plurality of gas circulation conduits and a casing for the exchange of heat between said gases and a coolant fluid that surrounds the gas circulation conduits housed inside the casing, wherein baffles are used to configure the passage of the coolant fluid between said gas circulation conduits, having at least one inlet baffle that directs the flow of coolant to the part and thus improving the operating conditions of the exchanger and making same more efficient.

Abstract: The present invention relates to a heat exchanger for gases, in particular for the exhaust gases of an engine, which includes a plurality of gas circulation conduits and a casing for the exchange of heat between said gases and a coolant fluid that surrounds the gas circulation conduits housed inside the casing, wherein baffles are used to configure the passage of the coolant fluid between said gas circulation conduits, having at least one inlet baffle that directs the flow of coolant to the part and thus improving the operating conditions of the exchanger and making same more efficient.

Abstract: The heat exchanger (2) comprises a stack of plates (4) comprising a lower plate (20) onto which the other plates (22) are stacked. The heat exchanger (2) also comprises a fixation plate (6) and a reinforcement plate (8) between the fixation plate (6) and the lower plate (20). The reinforcement plate (8) has reinforcing elements (24) obtained from a cut and fold of the reinforcement plate (8) material.

Abstract: Circulation duct for conveying a fluid of a heat exchanger, and heat exchanger. The duct (1) comprises two surfaces (s1, s2), each with a plurality of protruding elements (p) which project inside the duct (1), and are arranged adjacent to one another, forming a row which includes protruding elements (p) with a different form, and extends in a longitudinal direction according to the main direction of circulation Y of the fluid circulating, such that the flow of fluid encounters protruding elements (p) which are different sequentially both in space, according to this longitudinal direction, and in time, thus generating a plurality of disordered current lines (L). The heat exchanger comprises circulation ducts for a fluid, at least one of which is formed according to the circulation duct of the present invention.

Abstract: The invention is related to a heat exchanger (1), which comprises: at least one column of parallel tubes (2) which are arranged in a stack and which define a longitudinal direction; a housing (3) inside which the tubes (2) are housed, the tubes (2) being separated from one another, so as to configure a channel for the passage of cooling fluid consisting of: passage sections (4) between tubes (2) that are contiguous in the direction of the stack; passage sections (5) between tubes and housing (3); and baffles (6, 7) that deflect the cooling fluid. According to the invention, the baffles are at least two lamellar bodies (6, 7) of a single piece arranged in a plane perpendicular to the longitudinal direction.

Abstract: A heat exchanger (1) for gases, in particular for the exhaust gases of an engine includes a bundle of tubes (2) arranged inside a casing (3) defining a gas inlet (4) and outlet (5). The tubes (2) being intended for the circulation of the gases with a view to exchanging heat with a coolant, and the tubes (2) being distributed in at least one column having a plurality of rows defining a plurality of spaces (8) between the rows, and including a coolant inlet pipe (9) and outlet pipe (10) connected to the casing (3). The exchanger (1) includes a bypass channel (11) incorporated into the casing (3) capable of connecting the spaces (8) defined between the rows of tubes (2) located in front of the channel (11) with one of the coolant pipes (10), in such a way as to improve the distribution of the coolant.

Abstract: The invention is related to a heat exchanger (1), which comprises: at least one column of parallel tubes (2) which are arranged in a stack and which define a longitudinal direction; a housing (3) inside which the tubes (2) are housed, the tubes (2) being separated from one another, so as to configure a channel for the passage of cooling fluid consisting of: passage sections (4) between tubes (2) that are contiguous in the direction of the stack; passage sections (5) between tubes and housing (3); and baffles (6, 7) that deflect the cooling fluid. According to the invention, the baffles are at least two lamellar bodies (6, 7) of a single piece arranged in a plane perpendicular to the longitudinal direction.

Abstract: Gas heat exchanger, in particular for the exhaust gases of an engine, intended for the flow of gases with exchange of heat with a coolant, comprising a gas reservoir (1) having an inlet opening (1a) which can be attached to an end of a casing, an outlet opening (1b) which is connected to a shoulder (2) for connecting to the gas recirculation line, a particle filter (3) for filtering the exhaust gases and associated with the outlet opening (1b) of said gas reservoir (6), and a sealing gasket (4) provided on an outer surface (2a) of the connection shoulder (2). The filter (3) is integral with the gas reservoir (1), thus forming an inseparable single piece suitable for being attached to the casing of the exchanger. The particle filter (3) and the sealing gasket (4) are thus assembled in an optimum manner.

Abstract: A gas heat exchanger for the exhaust gases of an engine including a plurality of parallel tubes that are arranged inside a casing and through which flow the gases to be cooled by heat exchange with a coolant, the coolant inlet and outlet conduits being each arranged at an opposing extremity of the casing on a single side of said casing, is disclosed. Each tube has a protuberance opposing the direction of the gases, it being possible to assemble said tubes by stacking them such that the protuberances of the respective tubes form a barrier, in the form of a deflector, intended to create a predetermined pathway guaranteeing an appropriate distribution of the coolant flow from the inlet of same to the outlet of same about the tubes and along the entire length of the exchanger. The distribution of the coolant flow passing through same is improved without the need for conventional deflectors.

Abstract: A heat exchanger (1) for gas, in particular the exhaust gases of an engine, comprising a bundle of tubes arranged inside a shell (2) and intended for the circulation of gas with an exchange of heat with at least one stream of refrigerant fluid, said tubes being fixed by their ends between two support plates (5) coupled at each end of the shell (2), and deflection means arranged inside the shell (2) able to direct the at least one stream of refrigerant fluid inside the shell (2). The deflection means comprises a longitudinal deflector (6, 6a) substantially parallel to the tube bundle and intended to divide the shell (2) into two circuits, said deflector (6, 6a) being fixed by its longitudinal edges to the internal walls of the shell (2) and by its transverse edges to the two support plates (5) by welding. This ensures more effective mounting of said deflector inside the exchanger.

Abstract: A heat exchanger (1) for gases, in particular for the exhaust gases of an engine, comprising a bundle of tubes (2) arranged inside a casing (3) defining a gas inlet (4) and outlet (5), said tubes (2) being intended for the circulation of the gases with a view to exchanging heat with a coolant, and said tubes (2) being distributed in at least one column having a plurality of rows defining a plurality of spaces (8) between the rows, and comprising a coolant inlet pipe (9) and outlet pipe (10) connected to the casing (3). Said exchanger (1) comprises a bypass channel (11) incorporated into the casing (3) capable of connecting the spaces (8) defined between the rows of tubes (2) located in front of said channel (11) with one of the coolant pipes (10), in such a way as to improve the distribution of the coolant.

Abstract: It comprises a plurality of parallel conduits (3) provided inside a housing (2), through which gases to be cooled flow in heat exchange with a cooling fluid, said conduits (3) being attached between two plates (7) fixed in both ends of said housing (2), and the housing (2), and the housing (2) and the plates (7) having an area substantially rectangular. It is characterized in that each plate (7) comprises dimples (9) arranged near to its perimeter area, said dimples (9) including nails (10) capable of being into contact with a peripherical area (11) of the housing (2). It is possible to immobilize the plates during handling and application of brazing paste.